Concerning the semimetallic characters of TiS2 and TiSe2 |
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| Authors: | John A. Wilson |
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| Affiliation: | Bell Laboratories Murray Hill, New Jersey 07974, USA |
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| Abstract: | Recent data on TiS2 are discussed in terms of the dirty semiconductor model rather than the semimetallic model. The “T2” resistivity is attributed to scattering by “Fivaz-mode”, optic homopolar phonons rather than to electron-hole scattering.A slight semimetallic p-d overlap is finally obtained by TiSe2 and leads to phenomena of the type expected for the ‘excitonic insulator’. |
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